Free preview · Scale, sheet and what belongs on it
A drawing is a scaled argument about a building, and the scale you choose decides what you are allowed to say. At 1:200 you are describing a site and a massing; at 1:100 the general arrangement of rooms; at 1:50 the setting out of a kitchen, a bathroom or a stair; at 1:20 an assembly; at 1:5 or 1:1 the meeting of two materials. Drawing a junction at 1:100 is a promise you cannot keep, and drawing a whole floor at 1:20 is a month lost. Each sheet needs the same furniture, always in the same place. A title block with project name, client, drawing title, drawing number, scale, sheet size, north point, date, revision letter, and who drew and checked it. A revision cloud and a note describing what changed. A legend for any symbol not universally understood. General notes: all dimensions in millimetres, do not scale from this drawing, all dimensions to be verified on site, refer to structural and services drawings for coordination. Number drawings systematically so the set can grow without renaming: a discipline letter, a series for the type of drawing, then a sequence. A reader should be able to find the section through the stair from the plan without asking you. Finally, one drawing should answer one question well. Overloaded sheets are the most common reason a contractor builds the wrong thing while holding the right drawing.